[在宾夕法尼亚州的讲话] Speech at Pennsylvania State Teachers' College, Kutztown, Pennsylvania, May 28, 1951, Digital File: Koo_Box_0185, Folder: 186-1. 特藏中心.

[在宾夕法尼亚州的讲话] Speech at Pennsylvania State Teachers' College, Kutztown, Pennsylvania, May 28, 1951, Digital File: Koo_Box_0185, Folder: 186-1. 特藏中心. http://10.55.102.87:8081/repositories/2/archival_objects/9756 Accessed December 13, 2025.

(顾维钧, 1888－1985)

(顾维钧, 1888－1985, n.d.)

(顾维钧, 1888－1985, n.d.)

顾维钧, 1888－1985, “[在宾夕法尼亚州的讲话] Speech at Pennsylvania State Teachers' College, Kutztown, Pennsylvania, May 28, 1951,” , Digital File: Koo_Box_0185, Folder: 186-1., accessed December 13, 2025, http://10.55.102.87:8081/repositories/2/archival_objects/9756.

顾维钧, 1888－1985. [在宾夕法尼亚州的讲话] Speech at Pennsylvania State Teachers' College, Kutztown, Pennsylvania, May 28, 1951[Z/OL]([no date])[2025–12–13]. http://10.55.102.87:8081/repositories/2/archival_objects/9756.